"Emily? Can we talk to you?" Fred asks. I look at him fully, for the first time in about a month.
"Yes?" I snap. They haven't been kind to me and I'm not going to forgive them that easily.
"We're sorry," George says.
"We were stupid and stubborn and if you say that Sirius is innocent," Fred continues.
"I guess we should just trust you," George finishes.
"We were wrong to ignore you. I'm so sorry!" Fred says.
"It's okay guys," I say. "I forgive you."
Fred and George embrace me in a massive hug.
"I think a prank is long overdue," I say. "I haven't pranked since you guys stopped talking to me."
Fred and George look guilty.
"Anyway," I say briskly moving on. "I say we prank Ron and Harry."
"Emily," Fred says uncertainly.
"This isn't revenge is it?" George finishes.
"One, so what if it is, you do the same. Two, it's not," I explain.
"I say we prank muggle style!" Fred says.
"Oh my Merlin!" I exclaim. "I bought this airhorn when we weren't talking, we should do something with that!"
"Airhorn?" George asks in confusion.
"Muggle device, very noisy."
"What should we do with it?"
"Wall protector!" George shouts in triumph.
"Yes!" I exclaim. "And if we charm it to be extra noisy..."
"It would be there for the whole castle!" Fred says.
"Permanent sticking charm as well!" George says. We all high five.
"Let's get to it!"
Giggling, we run to my dormitory in the Hufflepuff common room, and grab my airhorn and wand, I always do the spellwork, I'm more precise although contrary to popular belief, the boys aren't actually bad. Then we run up to Harry's dormitory in the Gryffindor common room. I stick the airhorn to the wall with a permanent sticking charm.
"Magna!" I say, adding volume to it when it goes off. I made that spell up myself, so technically it's not legal but no one actually cares about that.

Dinner's just finished and we've headed up to the Gryffindor common room. Harry heads upstairs and we wait in anticipation.
"HONK!" the airhorn deafens us all. The portrait hole swings open and in walks a load of teachers including Snape, McGonagall and Dumbledore himself.
"Fred, George, Emily, come here this instant!" Snape roars. We walk confidently up to the teachers. "Was this you?"
"I thought we were clear it came from Harry's dormitory, sir?" I ask, cheekily innocent.
"Emily, really?" Snape asks. He's pretending to hate me. "Did you, or did you not, put that airhorn in the boys dormitory?"
"We did," I say proudly. The boys nod beside me.
"Detention," Snape sighed.
"Okee dokee," Fred, George and I say.

Later that night, I'm laid in bed.
"Honk!" the airhorn goes off again, this time it's a lot fainter because I'm so far away. The boys should be in bed... What? And by now, surely they'll be careful about the door.
"Charlotte," I hiss. she's a deep sleeper so I whack her on the head with my pillow.
"Yeah..?" she moans.
"Come with me!" I say, dragging her through the castle. When we reach the portrait hole, I see a black dog.
"Siri!" I say. "What are you doing here? Come on, we'll go to the shack."
Two girls and a dog, walking through a pitch black castle, that's us. When we arrive at the shack, we don't here howling until it's too late. I don't turn into my animagus quick enough, we didn't realise tonight was full-moon. The pain is almost unbearable.